Would these fit my stock '87 and be an improvement ???

[CatTomb]

 

http://portland.craigslist.org/mlt/mcy/4359864003.html

.... and yes, I know, I should go to a 17" wheel ... 

but, until then, would these be an improvement?

Thanks!

from the CL ad:
" I have a good set of 1992 Yamaha FJ1200 dual piston Sumitomo calipers. Pads are in good shape. I was going to use these for my bike but it would require too much modification to my bike to make them work. On ebay, a set of 1992 FJ1200 calipers go for $80-$120. I am selling mine for $30. They may fit other bikes. "

[movenon]

Jeff, I have a set of 1990's I will give you !
George

I bought some blue dots for 45.00 a while back.

[FJ111200]

Why post up when you know what to do?

[CatTomb]

Why post up when you know what to do?

I said I should go to the 17" wheel because that is the prevailing sentiment on this forum. I am happy with the stock wheels and tires but would like to get better braking if it is possible and cost effective. Free or $30 (₤18) seems pretty cost effective. 

George, Thank you for the offer. I will take you up on it if I get a positive response to my question about fitment and effectiveness. I might even ride over, take you to lunch and pick them up from you.

Jeff

[rktmanfj]

The later model calipers are not a bolt-on swap for the early (anti-dive 16" wheel) models.   

Your $30 would be better spent for a set of bluespots.
Or go ahead and get the ones from George to use when you have the funds for the 17" conversion.   

[ribbert]

Jeff, I have a set of 1990's I will give you !
George

Jeff, if you're doing this on a budget, the late model 4 piston calipers that George is offering are every bit as good as the blue spots, they just don't look quite as cool. Grab them! It is unlikely you will get a better price.

Noel

[rktmanfj]

the late model 4 piston calipers that George is offering are every bit as good as the blue spots, they just don't look quite as cool.
Noel

Do tell...     

[movenon]

Why post up when you know what to do?

I said I should go to the 17" wheel because that is the prevailing sentiment on this forum. I am happy with the stock wheels and tires but would like to get better braking if it is possible and cost effective. Free or $30 (₤18) seems pretty cost effective. 

George, Thank you for the offer. I will take you up on it if I get a positive response to my question about fitment and effectiveness. I might even ride over, take you to lunch and pick them up from you.

Jeff

Heck if you ride over I will give you a 17 inch FJ front wheel..... The wheel doesn't have rotor's... I don't know if the calipers will fit on your lowers ?
Someone else with more data will have to chime in..  

As for the calipers they might fit in one of the "if it fits 5.00 post office box's".  Or I could possably drop off the wheel and caliper if I take a divert to Bend en-route to the WCR...  I think I can get 2 bikes in the trailer... ?  If I don't get busy mine will be a "trailer queen"....
George

[movenon]

the late model 4 piston calipers that George is offering are every bit as good as the blue spots, they just don't look quite as cool.
Noel

Do tell...     

Hell, I got some blue anodized paint.............
George

[Pat Conlon]

No, the '89-93 calipers will not fit on Jeff's '87 forks.
The mounting holes are different.
Going by memory: the '84-87 are ~3.5"apart and the '89-93 are ~4.0"apart.
That's why we need to convert over to the '89 fork lowers if we want to mount the R-1/6 blue spots.
Unless you go with offset mounting plates on the early fork lowers.

[FJ_Hooligan]

Just because they have more pistons doesn't necessarily make them better.  Buy some good brake pads for your stock calipers and you'll improve your brake performance.

Here's a test; which would provide more braking force, a caliper with 2 60mm diameter pistons or a caliper with a single 90mm diameter piston?

[Capn Ron]

Just because they have more pistons doesn't necessarily make them better.  Buy some good brake pads for your stock calipers and you'll improve your brake performance.

Here's a test; which would provide more braking force, a caliper with 2 60mm diameter pistons or a caliper with a single 90mm diameter piston?

I don't have a clue but wish I did.  The single 90 has more surface area, but I have no idea how the hydraulics are set up or how the effect of the distribution of that force across one large...or two smaller pistons applies to the realized braking force or feel.  Would love to learn more on this and understand WHY everyone raves about the R1 blue/gold dots...  How are they designed differently to get this better feel...or are they just a better design than the early calipers and just the same as the late model calipers?  1992 FJ1200 minds want to know!

Cap'n Ron. . .

[1tinindian]

Wouldn't 2 ,60mm pistons (120mm total) have more surface area than a single 90mm piston?
All I know is that I hated my stock 91 front brakes until I changed them out for the blue dots and FZ1 master cylinder.

Leon

[movenon]

"Going by memory: the '84-87 are ~3.5"apart and the '89-93 are ~4.0"apart."

Mine is bigger............ 

I only went with the blue dots because I ran across a set with new pads for about the same price as putting pads on mine... However for the time being I have to use the the stock FJ master cylinder.... I will change that situation this summer. 

I will say there is a small bonus, they are a lot lighter.  A pound or so off the forks can't be all bad.

George

[simi_ed]

Ron, I'm assuming you have upgraded to SS brake lines. right?  The difference in brake feel is due to (lack) of swelling/expansion of SS vs. rubber OEM lines.  Now watch your (89) calipers (off my 89) swell as you squeeze the front brake.   It's not much. But they DO flex!  I saw them do it-I promise. The gold/blue dot calipers flex A LOT less.  That's the difference! 
I don't necessarily go along with group-think in general (no slight intended to my FJ brethren). But this is a case of group-think being spot-on.
Go blue dot, don't look back. ( sounds like this needs auto-tune)